[cpp]
#include <iostream>
using namespace std;
double LightYearToAstronomicalUnit();
int main()
{
LightYearToAstronomicalUnit();
return 0;
}
double LightYearToAstronomicalUnit()
{
double lightYear;
cout << "請輸入光年:";
cin >> lightYear;
cout << "換成天文單位為:" << lightYear*63240 << endl;
}
[/cpp]